Calm down RF. Use your head.
If you were to travel to some distant planet and found a bolt, washer and nut miles from your ship, you could make a list of accurate conclusions.
1)If I didn’t put these here someone else did.
2)These are the products of a society because no single person would go to the trouble of making such devices for himself alone.
3)These people know something of metallurgy.
4)They have a knowledge of math and measurements.
5)They use tools
6)They build things or they wouldn’t need a fastening device.
All of these statements would be true regardless of where these things came from. You would never come to the conclusion that nature created them by happenstance. Yet you would, upon seeing the infinitely more complex design of human beings, conclude that nature did the handiwork.
“Calm down RF. Use your head.
If you were to travel to some distant planet and found a bolt, washer and nut miles from your ship, you could make a list of accurate conclusions.”
Those conclusions would be accurate in your case. To make it like the case at hand,
1. They didn’t find a bolt, washer, or nut
2. They found something that may look like a bolt washer & nut
So all your conclusions, while reasonable, are undermined for want of a bolt.